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NATURAL HERITAGE

The Natural Communities of Virginia
Classification of Ecological Community Groups
SECOND APPROXIMATION (Version 2.2)


 

LOW-ELEVATION ROCK OUTCROPS AND BARRENS

Ecological community groups with distributions centered below 1,070 m (3,500 ft) elevation and representing edaphically (or in one case, fire-) controlled woodland, scrub, herbaceous, and moss/lichen vegetation.


Low-Elevation Acidic Outcrop Barrens

Low-Elevation Basic Outcrop Barrens

Limestone and Dolomite Barrens

Mountain / Piedmont Calcareous Cliffs

Mountain / Piedmont Acidic Cliffs

Central Appalachian Shale Barrens

Granitic Flatrocks

Piedmont Prairies

Ultramafic Barrens

Riverside Outcrop Barrens

Lichen / Bryophyte Boulderfields

photo of Potomac Gorge rock outcrops
Gary P. Fleming
Click Below to Learn More

Table of Contents

Introduction

Overview of VA Physiography & Vegetation

Glossary

Literature

Format of Descriptions

Terrestrial System: LOW-ELEVATION ROCK OUTCROPS AND BARRENS
   - Low-Elevation Acidic Outcrop Barrens
   - Low-Elevation Basic Outcrop Barrens
   - Limestone and Dolomite Barrens
   - Mountain / Piedmont Calcareous Cliffs
   - Mountain / Piedmont Acidic Cliffs
   - Central Appalachian Shale Barrens
   - Granitic Flatrocks
   - Piedmont Prairies
   - Ultramafic Barrens
   - Riverside Outcrop Barrens
   - Lichen / Bryophyte Boulderfields

Palustrine System

Riverine System

Estuarine System

Marine System